EP0283389B1 - Bedienungseinrichtung eines Differentials mit hydraulisch geregeltem Schlupf und ein damit ausgestattetes Fahrzeug - Google Patents

Bedienungseinrichtung eines Differentials mit hydraulisch geregeltem Schlupf und ein damit ausgestattetes Fahrzeug Download PDF

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Publication number
EP0283389B1
EP0283389B1 EP19880400569 EP88400569A EP0283389B1 EP 0283389 B1 EP0283389 B1 EP 0283389B1 EP 19880400569 EP19880400569 EP 19880400569 EP 88400569 A EP88400569 A EP 88400569A EP 0283389 B1 EP0283389 B1 EP 0283389B1
Authority
EP
European Patent Office
Prior art keywords
differential
bearing
casing
tube
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19880400569
Other languages
English (en)
French (fr)
Other versions
EP0283389A1 (de
Inventor
Jean-Michel Bouveret
Michel Aigouy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0283389A1 publication Critical patent/EP0283389A1/de
Application granted granted Critical
Publication of EP0283389B1 publication Critical patent/EP0283389B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/20—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing in which the differential movement is limited
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/295—Arrangements for suppressing or influencing the differential action, e.g. locking devices using multiple means for force boosting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • F16H2048/082—Differential gearings with gears having orbital motion comprising bevel gears characterised by the arrangement of output shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H2048/204—Control of arrangements for suppressing differential actions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H48/40—Constructional details characterised by features of the rotating cases
    • F16H2048/405—Constructional details characterised by features of the rotating cases characterised by features of the bearing of the rotating case
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2071—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using three freewheel mechanism
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • F16H48/32—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using fluid pressure actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H48/40—Constructional details characterised by features of the rotating cases

Definitions

  • the present invention relates to a device for controlling a hydraulically controlled slip differential.
  • the object of the present invention is to solve the above problems by proposing a device for control of a differential which is particularly reliable, inexpensive and has a minimal bulk.
  • the subject of the invention is a device for controlling a hydraulically controlled slip differential housed in a casing, one of the output shafts of which is carried by a bearing inside the casing, and by a bearing external to this casing, characterized in that the output shaft is surrounded by a sliding tubular member located at the level of the internal bearing in the casing and by a sliding tube locked in rotation relative to the casing and bearing on one side on a means actuation supported by the bearing outside the casing and on the other side on said sliding tubular member which cooperates on one side with radial levers acting on discs coaxial with the output shaft to vary the slip of the differential, and on the other side with the sliding tube on which it is supported by means of an axial bearing stop.
  • the sliding tube consists of two sections of tube fitted and hooked by means of a system of the bayonet type or the like, and the free ends of which are immobilized in rotation by means respectively secured to the casing and the above-mentioned outer bearing.
  • the aforementioned actuating means is hydraulically controlled and comprises two pistons which slide in the outer bearing parallel to the output shafts and which each comprise a nozzle engaged in an opening formed in a flange secured to one of the sections of tube so allow both the axial displacement of the two tube sections and their immobilization in rotation.
  • the invention also relates to a vehicle with transverse powertrain comprising a differential one of the output shafts of which is an intermediate shaft carried by an external bearing, this vehicle comprising a device meeting one or the other of the characteristics above and being associated with the differential to control a variation of its slip.
  • a powertrain 1 which is integrated a differential 2 of a type known per se and housed in a casing 3 of which one 4 of the output shafts 4, 5 is carried on one side by a bearing 6 integral with and inside the casing 3, and on the other side by a bearing 7 outside this casing.
  • the bearing 7 supports hydraulic actuation means 8 of a tubular member 9 surrounding the output shaft 4 at the level of the inner bearing 6, as can be seen in FIGS. 2 and 3.
  • the differential 2 essentially comprises, as is known per se, a housing 2a driven by a toothed wheel 2b and containing a plurality of coaxial discs generally identified at 12, it being understood that the housing 2a also contains planetary gears 13 coupled to the output shafts 4 and 5 and also carrying discs cooperating with the discs integral with the differential housing 2a 2.
  • the output shaft 4 between the inner bearing 6 and the outer bearing 7 to the case 3 of differential 2 is surrounded by a sliding tube 14 which consists of two sections of tube 14a, 14b which are integral with one another.
  • the tube section 14a is locked in rotation relative to the casing 3 of the differential 2 by means of a lug or the like 15 fixed to the section 14a and capable of sliding parallel to the shaft 4 in an opening 16 made in the casing 3.
  • the sliding tube 14 bears on one side, by the section 14a, on the tubular member 9, and, on the other side, by the section 14b, on the hydraulic actuation means 8.
  • This tubular member 9 cooperates on the other side with the section 14a of the sliding tube 14 on which it bears by means of an axial stop at bearing 18.
  • the axial displacement of the section 14a stationary in rotation relative to the output shaft 4 will control the axial displacement of the tubular member 9 to act on the radial levers 17.
  • the two sections of tube 14a, 14b are, as can be seen in FIGS. 3 and 4, fitted one inside the other and hung by means of a system of the bayonet type or the like which will be described later in the explanations relating to assembly.
  • the actuating means 8 integrated into the outer bearing support 7 comprise two pistons 19 which are slidably mounted parallel to the output shafts 4, 5, as can be seen in FIGS. 2 and 3.
  • Each of these pistons 19 has a nozzle 20 which engages in an opening 21 formed in a flange 22 forming the end of the tube section 14b on the side opposite to the tube 14a.
  • the ends 20 of the pistons 19 constitute a means of axial thrust of the section 14b and therefore of the section 14a, as well as a means of immobilizing in rotation the section 14b, it being understood that the section 14a is itself immobilized in rotation by lug 15, as previously explained.
  • a pressurization is carried out in the hydraulic circuit which terminates by the conduit 23 (see FIG. 3) in chambers 24 formed in the outer bearing support 7 and containing the sliding pistons 19. Consequently, the supply of hydraulic fluid in the chambers or cylinders 24 will cause the pistons 19 and therefore the tube sections 14b, 14a, and the tubular member 9 to rotate freely, thanks to the bearing 18, with the housing 2b of the differential 2. As a result this produces, by tilting the levers 17, a tightening of the discs 12 and therefore a reduction in the slip of the differential.
  • the flange 22 is brought into contact with the bearing 7, so that the openings 21 engage on the nozzles 20 of the pistons 19. Then, the two sections 14a, 14b are moved aside by threading the end 14c (FIG. 3) of the section 14a in the corresponding bore of the casing 3, until this end abuts against the opposite end of the tubular member 9 by means of the bearing 18.
  • variable slip differential control device in which the hydraulic control means are integrated into the external bearing supporting the output shaft of the differential, it being understood that the sliding control tube 14 surrounding the output shaft 4 can be easily assembled and disassembled.
  • This device is very easy to adapt, in particular to transverse powertrains comprising an intermediate transmission shaft carried by an external bearing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Retarders (AREA)

Claims (4)

1. Vorrichtung zur Betätigung eines in einem Gehäuse (3) untergebrachten Differenzialgetriebes (2) mit hydraulisch gesteuertem Schlupf, dessen eine (4) der Abtriebswellen (4, 5) durch ein innherhalb des Gehäuses (3) liegenden Lagers (6) und durch ein ausserhalb dieses Gehäuses liegenden Lager (7) getragen wird, dadurch gekennzeichnet, dass die Abtriebswelle (4) von einem im Bereich des inneren Lagers (6) innerhalb des Gehäuses (3) gleitbaren rohrförmigen Glied (9) und von einem drehfest gegenüber dem Gehäuse (3) angeordneten gleitbaren Rohr (14) umgeben ist, wobei das letztere auf einer Seite an einem durch das ausserhalb des Gehäuses liegenden Lager (7) getragenen Betätigungsmittel (8) und auf der anderen Seite an dem besagten gleitbaren rohrförmigen Glied (9) abgestüzt ist, welches auf einer Seite mit auf koaxial zur Abtriebswelle (4) angeordneten Scheiben (12) einwirkenden radialen Hebeln (17) zur Veränderung des Schlupfes des Differenzialgetriebes (2) und auf der anderen Seite mit dem gleitbaren Rohr (14) an welchem es sich über ein achsiales Druckkugellager (18) abstützt, zusammenwirkt.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das gleitbare Rohr (14) aus zwei ineinandergreifende und über ein bajonettartiges System (25, 26, 27) miteinander verhakten Rohrstücken (14a, 14b) besteht, deren freie Enden drehfest durch jeweils mit dem Gehäuse (3) und dem äusseren Lager (7) fest verbundene Mittel (15, 20) gehalten wird.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das vorgenannte Betätigungsmittel (8) hydraulisch gesteuert wird und zwei Kolben (19) aufweist, die in dem äusseren Lager (7) parallel zu den Abtriebswellen (4, 5) und welche jeweils einen in eine in einem mit dem einen Rohrstück (14b) fest verbundenen Flausch (22) angeordnete Offnung (21) eingreifenden Ansatz (20) aufweist um somit die achsiale Verschiebung der beiden Rohrstücken (14a, 14b) sowie deren drehfeste Anordnung gestatten.
4. Fahrzeug mit einem quergerichteten Triebwerkssatz, mit einem Differenzialgetriebe, dessen eine (4) der Abtriebswellen eine von einem äusseren Lager (7) getragene Zwischenwelle ist, dadurch gekennzeichnet, dass es eine, dem Differenzialgetriebe (2) zugeordnete Vorrichtung gemäss einem der Ansprüche 1 bis 3 aufweist, um die Veränderung dessen Schlupfes zu steuern.
EP19880400569 1987-03-17 1988-03-10 Bedienungseinrichtung eines Differentials mit hydraulisch geregeltem Schlupf und ein damit ausgestattetes Fahrzeug Expired - Lifetime EP0283389B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8703672 1987-03-17
FR8703672A FR2612465B1 (fr) 1987-03-17 1987-03-17 Dispositif de commande d'un differentiel a glissement controle hydrauliquement et vehicule equipe de ce dispositif

Publications (2)

Publication Number Publication Date
EP0283389A1 EP0283389A1 (de) 1988-09-21
EP0283389B1 true EP0283389B1 (de) 1991-07-24

Family

ID=9349093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880400569 Expired - Lifetime EP0283389B1 (de) 1987-03-17 1988-03-10 Bedienungseinrichtung eines Differentials mit hydraulisch geregeltem Schlupf und ein damit ausgestattetes Fahrzeug

Country Status (3)

Country Link
EP (1) EP0283389B1 (de)
DE (1) DE3863802D1 (de)
FR (1) FR2612465B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989005414A1 (en) * 1987-12-03 1989-06-15 Zahnradfabrik Friedrichshafen Ag Non-slip differential with levers for multiplying the controlling torque
US4976667A (en) * 1988-02-10 1990-12-11 Eaton Corporation Differential clutch and lever actuation system therefor
FR2674483A1 (fr) * 1991-03-29 1992-10-02 Glaenzer Spicer Sa Agencement pour l'entrainement en rotation de deux roues d'un meme essieu avec regulation de leurs vitesses de rotation.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991664A (en) * 1957-10-18 1961-07-11 Gen Motors Corp Fluid lock differential
GB1429492A (en) * 1973-03-16 1976-03-24 Gkn Transmissions Ltd Driven axles
JPS5755227A (en) * 1980-09-16 1982-04-02 Toyota Motor Corp Power transmission for vechile
DE3313283A1 (de) * 1983-04-13 1984-10-25 Daimler-Benz Ag, 7000 Stuttgart Sperrdifferential mit einer in einem differentialgetriebegehaeuse angeordneten sperrkupplung, die von einem in einem achsgehaeuse angeordneten aeusseren stellglied der axialkolben-zylinder-bauart betaetigt wird
IT1174241B (it) * 1983-07-16 1987-07-01 Daimler Benz Ag Indicatore dello stato di manovra per un differenziale con blocco dentato del differenziale

Also Published As

Publication number Publication date
FR2612465A1 (fr) 1988-09-23
DE3863802D1 (de) 1991-08-29
EP0283389A1 (de) 1988-09-21
FR2612465B1 (fr) 1991-06-07

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